Mineral Information and Data:

Olenite
NaAl9B3Si6O27O3(OH) [CNMNC approved formula]

Named after the locality: Olenëk River basin, Russia.

IMA status : Approved Species 1986 (IMA1985-006)
CLASSIFICATION 
Dana
(8th edition) :
61.03d.01.07  (This Dana# Changed)
  (61) Cyclosilicate Six-Membered Rings
  (61.03d) with borate groups (Lithian Tourmaline Subgroup)
  (61.03d.01) Elbaite Subgroup
  
Nickel-Strunz
(10th edition) :
09.CK.05
  (09) Silicates
  (09.C) Cyclosilicates
  (09.CK) [Si6O18]12- branched 6-membered single rings, with insular complex anions
  
Crystal system: Trigonal System
Point group (H-M): 3m — ditrigonal-pyramidal
Unit cell: a = 15.8Å, c = 7.08Å
Crystal Habit: As the outer zone, to 3 mm thick, of acicular crystals with elbaite cores
  
Color: Pale pink
Diaphaneity: No data
Luster: Vitreous
Hardness (Mohs): 7
Measured Density: 3.01 g/cm3
Streak: White
  
Geologic Setting: In pegmatitic veins crosscutting Precambrian metasediments.
Mineral Association: Elbaite, quartz, albite, potassic feldspar
  
Other Properties: Gemstone Readily Available.

 

Olenite
Origin: Olenii (Oleny) Range, Voron'i Tundry, Kola peninsula, Murmanskaja Oblast', Northern Region, Russia
Picture size: 2 mm
Photo and Owner: Thomas Witzke

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